GENERAL KNOWLEDGE

Detailed explanation-1: -… Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA.

Detailed explanation-2: -Ribonucleic acid, or RNA, is named on the bases of ribose sugar group found in backbone. In 1953, Alexander Rich with famed chemist Linus Pauling discovered the structure of RNA at Caltech using X-ray crystallography.

Detailed explanation-3: -(RY-boh-noo-KLAY-ik A-sid) One of two types of nucleic acid made by cells. Ribonucleic acid contains information that has been copied from DNA (the other type of nucleic acid). Cells make several different forms of ribonucleic acid, and each form has a specific job in the cell.

Detailed explanation-4: -Ribonucleic acid (RNA) is a linear molecule composed of four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U).

Detailed explanation-5: -Examples of small RNAs are transfer RNA (tRNA), 5S ribosomal RNA (rRNA), microRNA (miRNA), small interfering RNA (siRNA), small nucleolar RNA (snoRNA), Piwi-interacting RNA (piRNA), tRNA-derived small RNA (tsRNA), and small rDNA-derived RNA (srRNA).